Chapter R - Review of Basic Concepts - R.3 Polynomials - R.3 Exercises - Page 33: 43

Polynomial, none of these, degree of 11.

There are four terms in the polynomial, therefore it is none of the given possibilities. In order to find the greatest degree, we have to add the exponents of $a$ and $b$ Therefore the greatest degree is the exponent of the second term: 11 The answer is: polynomial, none of these, degree of 11.